package com.java2;

import com.java1.Person;
import org.junit.Test;

import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class OtherTest {

    /*
    获取构造器结构

     */
    @Test
    public void test1() {

        Class clazz = Person.class;
        //getConstructors():获取当前运行时类中声明为public的构造器
        Constructor[] constructors = clazz.getConstructors();
        for (Constructor con : constructors) {
            System.out.println(con);
        }

        System.out.println();
        //getDeclaredConstructors():获取当前运行时类中声明的所有的构造器
        Constructor[] constructors1 = clazz.getDeclaredConstructors();
        for (Constructor con : constructors1) {
            System.out.println(con);
        }
    }
     /*
    获取运行时类的父类

     */
     @Test
     public void test2() {
         Class clazz = Person.class;

         Class superclass = clazz.getSuperclass();
         System.out.println(superclass);
     }
   /*
    获取运行时类的带泛型的父类

     */
   @Test
   public void test3(){
       Class clazz = Person.class;

       Type genericSuperclass = clazz.getGenericSuperclass();
       System.out.println(genericSuperclass);
   }

      /*
    获取运行时类的带泛型的父类的泛型


    代码：逻辑性代码  vs 功能性代码
     */
      @Test
      public void test4() {
          Class clazz = Person.class;
          Type genericSuperclass = clazz.getGenericSuperclass();
          ParameterizedType paramType = (ParameterizedType) genericSuperclass;

          //获取泛型类型
          Type[] actualTypeArguments = paramType.getActualTypeArguments();
          System.out.println(actualTypeArguments[0].getTypeName());
      }

        /*
    获取运行时类实现的接口
     */
        @Test
        public void test5() {
            Class clazz = Person.class;
            Class[] interfaces = clazz.getInterfaces();
            for (Class c : interfaces) {
                System.out.println(c);
            }


            System.out.println();
            //获取运行时类的父类实现的接口
            Class[] interfaces1 = clazz.getSuperclass().getInterfaces();
            for (Class c : interfaces1) {
                System.out.println(c);
            }
        }

    /*
   获取运行时类所在的包

*/
    @Test
    public void test6() {
        Class clazz = Person.class;
        Package aPackage = clazz.getPackage();
        System.out.println(aPackage);
    }

        /*
        获取运行时类声明的注解

     */
        @Test
        public void test7() {
            Class clazz = Person.class;
            Annotation[] annotations = clazz.getAnnotations();
            for (Annotation annotation : annotations) {
                System.out.println(annotation);
            }
        }

        }
